Tug wheel



' Dec. 4, 1928.

1,694,274 J. I. McKEAN TUG WHEEL Filed April 15; 1923 Patented Dec. 4' 1928.

UNETEE STATES @ATENT OFFICE.

JOHN I. MOKEAN, OF PARKERSBURG, WEST VIRGINIA, ASSIGNOR TO STANDARD OIL DEVELOPMENT COMPANY, A CORPORATION OF DELAWARE.

TU'G WHEEL.

Application filed April 12, 1923.

This invention relates to well drilling equipment and will be fully understood from the following description, taken in connection with the accompanying drawing, in which-' i Fig. 1 is a side elevation of a tug wheel embodying the invention;

2 is an edge view of the same, looking in the direction of the arrow II on Fig. 1; and

F 3 is a similar view, looking in the direction of the arrow III on Fig. 1.

In an old construction of tug wheel, ropeengaging cleats were placed out on one or more spokes of the wheel. These in use carried too much uneven stress onto the spokes involved and caused racking of the wheel.

A problem is presented in a'device of this character to construct rope-engaging members which will be suitably attached to the wheel, but yet not be a source of weakening.

Iteferring to the drawing illustrative of the present invention, the reference character 1 designates a shaft, for example a bullwheel shaft, parts not essential to an understanding of the invention being broken away, and secured on the shaft is a tug wheel 2. Fastened to the shaft and to the wheel by suitable fastening means as desired is a member A the end 3 of which is positioned as abuttress against a member B which is similarly fastened to the shaft and wheel. The end 4: of the member B is positioned as a buttress against a member G and the end 5 of the member C is in turn positioned as a buttress against a member D also similarly fastened to the shaft and wheel. Extending out from the-member I) either as anattached extension or as an integral prolongation is a rope-engaging projection 8 which is fastened to the rim and preferably set in. The members A, B, C and D fastened to the shaft, on suitable facets, and fastened together in sucessive series are in effect a braced framing secured to the shaft, and the free ends 6, 7 etc., presents rope-engaging projection, thus constituting the members E, (hand I) rope-engaging members. As seen, the end 8 extends beyond therim, the end 7 is nearer the center of the wheel and Serial No. 631,765.

theend 6 still nearer, the series forming progressive steps for engaging the rope. Tie-strips 9a1ign the members A, B, C and D with the spokes respectively adjacent-. them. I

The manner-of use of the device will be clear to those skilled in the art, it being understood that the grooved rim of the wheel receives the driving rope or belt which transmits the power to turn the bull-wheel} shaft to pull out the tool-string, and so on, and the rope-engaging members on the side of the wheel enable easy and safe throwing of the driving rope or bull-rope in making changes.

hat I claim is:

1. In combination, a shaft, a rope-operated tug rim, spokes fitted to shaft and rim, and a series of rope-engalging members at one side of the wheel and arranged to receive the rope when displaced from the wheel, said members being fastened to the shaft and braced a 'ainst each other in succession, one of the rope-engaging members being set into the side of the rim of the wheel. p i

2. In combination, a shaft, a rope-open ated tug rim, spokes securing rim to said shaft, and a series of rope-engaging members at the side of the wheel and arranged to receive the rope when displaced from the wheel, said members being fastened to the shaft and braced against each other in succession.

3. In combination, a shaft, a rope-operated tug rim, spokes securing rim to shaft, and a series of rope-engaging members at the. side of the wheel and arranged to receive therope when displaced from the wheel, said members beingvbra-ced against each other in succession and having their rope-engaging ends positioned at progressive distances from the center of the wheel.

4:. In combination, a shaft, a rope-oper- 5 ated tug rim, spokes secured to shaft and rim, and a-series of rope-engaging members at the side of the wheel and arranged to receive the rope when displaced from the wheel, said members being braced against 10 each other in succession.

JOHN r. MoKEAN. 

